Question

11r-(5r + 8) = 2(3r-4)
Help me

Answer 1

11r-(5r + 8) = 2(3r-4)
11r-5r-8=6r-8
6r=6r тождество!!!!!!!!!!!

Answer 2

11 r - 5r - 8 = 6 r - 8
11 r - 5 r - 6 r = -8 + 8 
0 r = 0
Бесконечное решение .